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88009 = 1731167
BaseRepresentation
bin10101011111001001
311110201121
4111133021
510304014
61515241
7514405
oct253711
9143647
1088009
1160139
1242b21
133109c
1424105
151b124
hex157c9

88009 has 8 divisors (see below), whose sum is σ = 96768. Its totient is φ = 79680.

The previous prime is 88007. The next prime is 88019. The reversal of 88009 is 90088.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88009 - 21 = 88007 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444 + ... + 610.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

288009 is an apocalyptic number.

It is an amenable number.

88009 is a deficient number, since it is larger than the sum of its proper divisors (8759).

88009 is a wasteful number, since it uses less digits than its factorization.

88009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 88009 is about 296.6631085929. The cubic root of 88009 is about 44.4811181098.

The spelling of 88009 in words is "eighty-eight thousand, nine".

Divisors: 1 17 31 167 527 2839 5177 88009